Electrical-receptacle mounting.



' E. FREEMAN, ELECTRICAL REGEPTAOLE MOUNTING.

APPLICATION FILED AUG. 3, 1908.

7 9474154. Patented Jan.18,1910.

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* UNITED STATES PATENT OFFICE.

EDGAR H. FREEMAN, OF TBENTON, NEW JERSEY, ASSIGNOR T0 E. H. FREEMAN ELEC- TRIO COMPANY, OF TRENTON, NEW JERSEY, A. CORPORATION OF NEW JERSEY.

- ELECTRIOAL-REGEPTACLE MOUNTING.

Specification of Letters Patent.

Patented Jan. 18, 1910 To all whom it may concern:

Be it known that l, Enema H. FREEMAN, a citizen of the United States, residing at Trenton, in the county of Mercer and State of New Jersey, have inventedcertain new and useful Improvements in Electrical-Receptacle Mountings, of which the following readily and satisfactorily fastening the re-' ceptacle to the sign board or other sup orting element in which it may be installs A further general object of the invention is to provide a simple fastening device capable of eneral application to any and all types 0 sign receptacles without requiring any material change in the construction of the receptacle body.

The improved fastening device may be utilized in diflerent forms, and various modifications may be resorted to-in the application of the invention, but certain practical embodiments of the latter are shown in the accompanying drawings, in which:

Figure 1 1s a general perspective view illustrating an electrical receptacle fastened upon a si board or other supporting element by t e spring clamping device claime herein. Fig. '2 is a sectional elevation of the construction shown in Fig. 1. Fig. 3 is a plan view of the sign board or. supporting element showing the formation of the hole to receive the receptacle body illustrated in Figs. 1 and 2. Fig. 4 is a rear end view of the design of receptacle body shown in the drawin s. Fig. 5 is a plan view of one form 0" spring clamping band that may be employed in carrying out the invention. Fig. 6 is 'a detail in perspective of another form of a spring clamping band which may be used for the fastening device.

Like references designate corresponding parts in the several figures of the drawings.

The improved sprin fastening forming the subject matter of t is application may. be fitted to different kinds and styles of electrical receptacles, but for illustrative purposes, the same is shown in the drawings as applied to areceptacle of a form possessing s ecial utility as a sign receptacle, and embo ying in its organization a one-piece porcelain or equivalent receptacle body 1. This receptacle body is illustrated as being provided at what may be termed. its outer end, with an annular binding collar 2 presenting at its inner side a binding shoulder to impinge against one side of the sign sheet or other supporting element 3 in opposition to the spring clamping device 4, which is adapted to be sprung or snapped over the receptacle body at the opposite side of the supporting element 8.

The spring clamping device 4 is in the form of a s ring band capable of being expanded su ciently to be slipped over the receptacle body, and which, when released, will contract under spring pressure onto and about the body so that it will firml remain in its clamping position behind an the sign sheet or supportin element 3 and within what may be terme' an annular retaining seat- 5 provided on and around the receptacle body next to the binding collar 2. This annular retaining seat is practically a groove about the receptacle body rovided y ,forming the receptacle body wit a plurality of longitudinally arranged spaced holding ribs 6 presenting shoulders between which and the sign sheet the spring clamping device is confined. The spring clamp-v ing band 4, as shown in Figs. 1, 2 and 5, simply consists of a closely wound coiled spring looped into ring form and coupled together at its extremities as at 7. Ohviousl various other forms of spring bands, capab e of expanding and contracting may be utilized, and another exam le of the same is suggested in Fig. 6, whic illustrates a spring clamping band consisting of a spirally coiled length of spring wire 8 having its terminals extended ast each other an deflected outwardly to orm finger pieces 9. These finger pieces, when drawn toward each other, serve to spread or expand the band so that it may be slipped over the body and sprung into engagement with the retaining seat 5.

In using a body. with the holding ribs 6, the receptacle receiving hole 10 is formed. in its edges with guiding notches 11 which prevent the receptacle from turning in the against face of the si In this connection it will 1 be observed om Fi'. 2 of the drawin s, that short sections 0 the ribs G lie in t e I notches 11 of the sign sheet to secure the function noted.

v proportion, and etails of construction may be reor sacrificing any 0 the advantages 0 the invention.

I claim:

- In an'electrical receptacle mounting, thecombination with a supporting element having notchesin the edge of the receivin hole, the receptacle body having external r5) engagement with said notches, and a continuous spring band sprung over said body between one side of the supporting element and adjacent end portions of said ribs.

5 for 15 In testimony whereof I hereunto aflix my 20 signature in the presence of two witnesses. EDGAR H. FREEMAN.

Witnesses:

GEO. E. -MAGUIRE, Bnssm BATH. 

